Abstract
Wind and wave characteristics for offshore wind power utilization were investigated off the Kita-kyushu city sea area based on observed field data obtained from newly constructed offshore observation tower system. This paper shows reasonable setting methods for extreme wave and wind design conditions, by considering with the existing international standard and the Japanese port standard. As a result of simulations, the correlation coefficient between waves and winds was clarified, and it was proved to be sufficiently conservative to combine expectation values of 50 years return period.
